Nature Chemical Engineering最新文献_第2页

Operando magnetic resonance imaging in reaction engineering

Nature Chemical Engineering Pub Date : 2025-03-10 DOI: 10.1038/s44286-025-00196-9

Yanfei Zhu

引用次数: 0

One-step CO2 electrolysis and separations via a reversed gas diffusion electrode

Nature Chemical Engineering Pub Date : 2025-03-07 DOI: 10.1038/s44286-025-00195-w

Nich Nearyrat Phalkun, Kirsten Van Fossen, Magda H. Barecka

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Understanding the effect of additives on plastic waste deconstruction

Nature Chemical Engineering Pub Date : 2025-02-28 DOI: 10.1038/s44286-025-00188-9

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Self-looped electrochemical recycling of lithium-ion battery cathode materials to manufacturing feedstocks

Nature Chemical Engineering Pub Date : 2025-02-26 DOI: 10.1038/s44286-025-00186-x

Zhiwei Fang, Peng Zhu, Xiao Zhang, Yuge Feng, Haotian Wang

{"title":"Self-looped electrochemical recycling of lithium-ion battery cathode materials to manufacturing feedstocks","authors":"Zhiwei Fang, Peng Zhu, Xiao Zhang, Yuge Feng, Haotian Wang","doi":"10.1038/s44286-025-00186-x","DOIUrl":"10.1038/s44286-025-00186-x","url":null,"abstract":"Existing lithium-ion battery recycling methods often involve energy-, chemical- and/or waste-intensive processes. Here we demonstrated a self-looped electrochemical battery recycling approach that enables efficient recycling of lithium and transition metals from spent cathode materials. These recycled materials can be directly applied to manufacture new batteries without further treatment. By operating electrochemical hydrogen evolution and oxidation reactions in a three-chamber porous solid electrolyte reactor, input Li2SO4 solution can be converted into lithium hydroxide and sulfuric acid with a Li+ transport efficiency of around 90%, at current densities of 100 mA cm−2 and low energy consumption (starting from 0.36 V). This is followed by a stoichiometric acid leaching and alkaline precipitation process that separates spent lithium metal oxides into high-purity (>99.7%) lithium and transition metal hydroxide products. The Li2SO4 solution can be successfully restored at the end of each recycling cycle, enabling a sustainable process that requires only H2O2 as an external input. This approach avoids external cation contamination and eliminates the need for waste stream treatments. Existing lithium-ion battery recycling methods often involve energy-, chemical- and/or waste-intensive processes. Here, the authors develop an electrochemical method for lithium-ion battery recycling based on a porous solid electrolyte reactor, enabling efficient reuse of valuable materials in spent cathodes, with high lithium and transition metal recovery efficiency and low energy consumption.","PeriodicalId":501699,"journal":{"name":"Nature Chemical Engineering","volume":"2 2","pages":"142-151"},"PeriodicalIF":0.0,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143490058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluating advances in chemical engineering 评估化学工程的进展

Nature Chemical Engineering Pub Date : 2025-02-26 DOI: 10.1038/s44286-025-00191-0

引用次数: 0

Catalytic deconstruction of organic additive-containing plastics

Nature Chemical Engineering Pub Date : 2025-02-26 DOI: 10.1038/s44286-025-00187-w

Jacqueline Ngu, Sean Najmi, Esun Selvam, Brandon Vance, Piaoping Yang, Dionisios G. Vlachos

{"title":"Catalytic deconstruction of organic additive-containing plastics","authors":"Jacqueline Ngu, Sean Najmi, Esun Selvam, Brandon Vance, Piaoping Yang, Dionisios G. Vlachos","doi":"10.1038/s44286-025-00187-w","DOIUrl":"10.1038/s44286-025-00187-w","url":null,"abstract":"Plastics waste ends up in landfills, oceans and incinerators, posing major environmental and human health threats. Catalytic deconstruction is emerging as a key technological solution to handle complex plastics and has successfully converted virgin polymers into various products. Here we investigate the resilience of chemical deconstruction technologies to organic additives, which are ubiquitous in plastics. We study catalyst–additive interactions experimentally and via first-principles calculations for plastics additives representative of entire classes. We reveal two deactivation mechanisms and demonstrate that most recently developed catalysts are inadequate for polyolefin conversion due to poisoning caused by the strong adsorption of many additives or their small fragments. We also identify conditions and catalysts that can circumvent the challenge of deconstruction in the presence of additives. Plastic additives can hinder the mechanical recycling of plastics; a similar issue arises in chemical deconstruction, where plastic additives can deactivate catalysts. Here the authors compare hydroconversion and catalytic pyrolysis to identify specific criteria needed to mitigate the effects organic additives on the deconstruction of polyolefins.","PeriodicalId":501699,"journal":{"name":"Nature Chemical Engineering","volume":"2 3","pages":"220-228"},"PeriodicalIF":0.0,"publicationDate":"2025-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143690333","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

To mix or not to mix?

Nature Chemical Engineering Pub Date : 2025-02-24 DOI: 10.1038/s44286-025-00184-z

David Zwicker

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Inert nano-overlay shields

Nature Chemical Engineering Pub Date : 2025-02-24 DOI: 10.1038/s44286-025-00189-8

Yanfei Zhu

引用次数: 0

The green hydrogen implementation gap

Nature Chemical Engineering Pub Date : 2025-02-24 DOI: 10.1038/s44286-025-00190-1

Mo Qiao

引用次数: 0

Rekindling the use of acetylene as a chemical building block

Nature Chemical Engineering Pub Date : 2025-02-21 DOI: 10.1038/s44286-025-00185-y

Zihao Zhang, Abhinandan Nabera, Gonzalo Guillén-Gosálbez, Javier Pérez-Ramírez

{"title":"Rekindling the use of acetylene as a chemical building block","authors":"Zihao Zhang, Abhinandan Nabera, Gonzalo Guillén-Gosálbez, Javier Pérez-Ramírez","doi":"10.1038/s44286-025-00185-y","DOIUrl":"10.1038/s44286-025-00185-y","url":null,"abstract":"Acetylene, produced from coal or natural gas, was a cornerstone of the chemical industry until the 1960s. However, the long-term global availability of inexpensive petroleum before 1973 accelerated the production of olefins, diminishing acetylene’s market prominence because of their similar downstream applications. As petroleum prices fluctuate, acetylene has regained economic viability in certain regions, notably accounting for approximately one-third of the global vinyl chloride production, despite its high carbon footprint. Environmental and economic assessments show that replacing coal with biochar in acetylene-derived vinyl chloride production not only lowers the carbon footprint but also could remain economically viable compared with the ethylene route. Despite this potential, research on acetylene has been largely overlooked for decades. Here we provide an analysis of acetylene production technologies, propose sustainable production initiatives and quantify their economic and environmental performance, and explore potential applications. By showcasing this promising trajectory, we seek to rekindle interest and foster collaborative efforts in advancing sustainable acetylene production and broadening its use as a building block. Green acetylene production, utilizing renewable feedstocks and decarbonized electricity, can leverage both traditional and emerging technologies. This Perspective showcases how a transitional trajectory to green acetylene could rekindle interest in acetylene as a versatile building block for advancing sustainability in the chemical industry.","PeriodicalId":501699,"journal":{"name":"Nature Chemical Engineering","volume":"2 2","pages":"99-109"},"PeriodicalIF":0.0,"publicationDate":"2025-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143490062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0